Created
February 11, 2022 19:39
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Algorand transaction
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| /** | |
| * @resource | |
| * https://github.com/PureStake/api-examples/blob/master/javascript-examples/algod_submit_tx.js | |
| * https://developer.algorand.org/docs/sdks/javascript/#build-first-transaction | |
| */ | |
| export async function pureTransaction() { | |
| const regExp = new RegExp(/\,/, 'g') | |
| const mnemonic = 'final, equal, social, attack, chimney, spend, swear, civil, sad, jungle, dumb, assault, metal, feature, monitor, marriage, fly, depart, ill, shed, burger, census, swift, absent, garlic'.replace( | |
| regExp, | |
| '', | |
| ) | |
| const recoveredAccount = algosdk.mnemonicToSecretKey(mnemonic) | |
| // Construct the transaction | |
| const client = new algosdk.Algodv2(token, ALGO_CLIENT_SERVER, port) | |
| let params = await client.getTransactionParams().do() | |
| // comment out the next two lines to use suggested fee | |
| // params.fee = 1000 | |
| // params.flatFee = true | |
| const receiver = 'REYCTDA3AWAFPXTN5IEFFCA5LGCJN74RPKSJCFU3GTMZYXX2AWYJIZRGJY' | |
| const enc = new TextEncoder() | |
| const note = enc.encode('Algorand transaction') | |
| let amount = 1000000 // equals 1 ALGO | |
| let sender = recoveredAccount.addr | |
| let txn = algosdk.makePaymentTxnWithSuggestedParams( | |
| sender, | |
| receiver, | |
| amount, | |
| undefined, | |
| note, | |
| params, | |
| ) | |
| let signedTxn = txn.signTxn(recoveredAccount.sk) | |
| let txId = txn.txID().toString() | |
| console.log('Signed transaction with txID: %s', txId) | |
| // Submit the transaction | |
| await client.sendRawTransaction(signedTxn).do() | |
| // Wait for confirmation | |
| let confirmedTxn = await waitForConfirmation(client, txId, 4) | |
| //Get the completed Transaction | |
| console.log( | |
| 'Transaction ' + | |
| txId + | |
| ' confirmed in round ' + | |
| confirmedTxn['confirmed-round'], | |
| ) | |
| var string = new TextDecoder().decode(confirmedTxn.txn.txn.note) | |
| console.log('Note field: ', string) | |
| const accountInfo = await client | |
| .accountInformation(recoveredAccount.addr) | |
| .do() | |
| console.log('Transaction Amount: %d microAlgos', confirmedTxn.txn.txn.amt) | |
| console.log('Transaction Fee: %d microAlgos', confirmedTxn.txn.txn.fee) | |
| console.log('Account balance: %d microAlgos', accountInfo.amount) | |
| } | |
| /** | |
| * Wait until the transaction is confirmed or rejected, or until 'timeout' | |
| * number of rounds have passed. | |
| * @param {algosdk.Algodv2} algodClient the Algod V2 client | |
| * @param {string} txId the transaction ID to wait for | |
| * @param {number} timeout maximum number of rounds to wait | |
| * @return {Promise<*>} pending transaction information | |
| * @throws Throws an error if the transaction is not confirmed or rejected in the next timeout rounds | |
| */ | |
| const waitForConfirmation = async function ( | |
| algodClient: any, | |
| txId: string, | |
| timeout: number, | |
| ) { | |
| if (algodClient == null || txId == null || timeout < 0) { | |
| throw new Error('Bad arguments') | |
| } | |
| const status = await algodClient.status().do() | |
| if (status === undefined) { | |
| throw new Error('Unable to get node status') | |
| } | |
| const startround = status['last-round'] + 1 | |
| let currentround = startround | |
| while (currentround < startround + timeout) { | |
| const pendingInfo = await algodClient | |
| .pendingTransactionInformation(txId) | |
| .do() | |
| if (pendingInfo !== undefined) { | |
| if ( | |
| pendingInfo['confirmed-round'] !== null && | |
| pendingInfo['confirmed-round'] > 0 | |
| ) { | |
| //Got the completed Transaction | |
| return pendingInfo | |
| } else { | |
| if ( | |
| pendingInfo['pool-error'] != null && | |
| pendingInfo['pool-error'].length > 0 | |
| ) { | |
| // If there was a pool error, then the transaction has been rejected! | |
| throw new Error( | |
| 'Transaction ' + | |
| txId + | |
| ' rejected - pool error: ' + | |
| pendingInfo['pool-error'], | |
| ) | |
| } | |
| } | |
| } | |
| await algodClient.statusAfterBlock(currentround).do() | |
| currentround++ | |
| } | |
| throw new Error( | |
| 'Transaction ' + txId + ' not confirmed after ' + timeout + ' rounds!', | |
| ) | |
| } |
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